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ZN23-40.5 3 Phase Indoor 33kv 35kv 40.5kv Air Circuit Breaker

Basic Information
Place of Origin: XIAN, China
Brand Name: XG
Certification: ISO CCC
Model Number: ZN23
Minimum Order Quantity: 1set
Packaging Details: WOODEN CASE
Delivery Time: 3-7 DAYS
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 2000 SET
Detail Information
Function: Control And Protection Installation Location: Power Plants
Warranty: 12 Months OEM: Yes
Package: Exporting Standard Package MOQ: 1set
Operation Type: Electric Or Manual Life Span: More Than 15 YEARS
High Light:

ZN23 Air Circuit Breaker


33kv Air Circuit Breaker


40.5kv Air Circuit Breaker

Product Description

1. ZN23-40.5 series 3 phase indoor 33kv 35kv 40.5kv air circuit breaker draw out type

ZN23-40.5 vacuum circuit breaker is rated voltage 40.5kA, three-phase AC 50Hz indoor high-voltage electrical equipment.
Apply to industrial and mining enterprises, substation and transmission and distribution systems for control and protection switching; particularly suitable for metallurgy, electric arc steel-making industries, etc. frequent operation required, as a control and protection equipment.
This product meets the GB 1984-89 “AC High Voltage Circuit Breaker” standard.


2. Parameter of air circuit breaker draw out type

NO Item Units Technical parameters
1 Rated voltage kV 40.5
2 Thunder impulse withstand voltage(peak value) kV 185
3 lmin industrial frequency withstand voltage kV 95
4 Rated frequency Hz 50
5 Rated current A 1250,1600,2000
6 Rated short-circuit break current kA 25 31.5
7 Rated peak value withstand current kA 25 31.5
8 Rated peak value withstand current KA 63 80
9 Rated short-circuit duration time s 4
10 Rated short circuit breaking time ms  
11 Rated short circuit closing current kA 80
12 Rated operation order   0-0.3s-C0-180s-C0
13 Time of closing brake ms 50~85
14 Time of breaking brake ms 40~85
15 Rated short-circuit current break and close times Times 20
16 Mechanical life-span Times 10000
17 Rated dropout current of condenser bank A 630
18 Rated power of energy-storage electric machine W 275
19 Rated volt of energy-storage motor V 25 ± 2
20 Storage time S ≤15
21 Closing and opening solenoid rated voltage V ≈220,110
22 Loss of pressure tripping device rated voltage V ≈220,110
23 Over current tripping device rated current A 5
24 Auxiliary switch rated voltage current A DC10

3. Working application

Amplitude: earthquake intensity does not exceed 8 °,
Air relative humidity on average less than 95%, on average less than 90%
An ambient air temperature: to +40 °C, the lower limit of -150°C,
Altitude:. ≤ 1000m (For higher altitudes, the rated insulation board level relative increase)
No risk of fire, explosion, serious pollution, chemical corrosion and severe vibration.

4. Technical drawings
5. Factory
ZN23-40.5 3 Phase Indoor 33kv 35kv 40.5kv Air Circuit Breaker 1
6. Delivery
ZN23-40.5 3 Phase Indoor 33kv 35kv 40.5kv Air Circuit Breaker 2
7. FAQ

1. Send the technical data, better for all useful information; we will make a good recommendation.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
3. Usually shipped by sea, small order or urgent order we can send you by air.
4. All our activities are accredited to ISO 14001:2015 and IEC standard.

Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197